What are the two types of cursors in pl sql?

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What are sql data types?

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Can pl sql procedure have a return statement?

0 Answers  

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Difference between DBMS and RDBMS...CODD's rules

4 Answers   Polaris,

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What is an exception in PL/SQL? What are the two types of exceptions?

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How you can copy a file to file content and file to pl/sql table in advance pl/sql?

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Mention what problem one might face while writing log information to a data-base table in pl/sql?

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Hi, Can anybody please explain me the flow of the below query. I am not able to understand how this query works. This query is for finding the Nth highest salary.. SELECT DISTINCT (a.sal) FROM EMP A WHERE &N = (SELECT COUNT (DISTINCT (b.sal)) FROM EMP B WHERE a.sal<=b.sal); If N = 2 then second highest salary will be the o/p. If N = 3 then third highest salary will be the o/p. and so on.. Thanks, Nitin

5 Answers   Deloitte, Ness Technologies,

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What is denormalization in a database?

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What is mutating error?

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Tell me what a package consists of.

3 Answers  

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What is the difference between distinct and unique in sql?

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